there isn't enough information to give you really good advice, so general thoughts here.
sounds like the market has spoken to you very clearly - there's either something terribly wrong w/your listing or you're overpriced.
call two or three other realtors in your area and ask for an evaluation. it's usually free (make sure before booking the appt) and see what they say. you'll get better advice from local experts than we who don't have the address or listing to review, let alone your neighborhood market expertise.
when you engage a couple experts, you need to be sure that you're open to their feedback and willing to make changes based on data, experience and expertise.